Sonic Forces Could Decide The Fate Of The Franchise

After Sonic Mania's success, SEGA must be watching the reception to Sonic Forces very closely, especially with it releasing on all 3 consoles. If it tanks, will SEGA stick with 2D Sonic from here on? What if people like it - more 3D Sonic games?

just make a game where Modern Sonic travels through dimensions and meets all his incarnations, from Underground and Boom to Riders and Unleashed. Implement 3D and 2D running levels as the standart and bring back some new levels based on the gameplay of those previous stuff. As sh*t as those games were, it would be fun to joke around it like Sonic Boom the show does!